Cambridge Soundworks
The Cambridge Soundworks OontZ Ultra Dual Portable Bluetooth Speaker 5.0 2‑Pack delivers 14 W of stereo sound per unit, boasts an IPX7 waterproof rating and up to 20 hours of playback. Paired via the OontZ app, the two compact speakers provide true left/right separation and a 100‑ft Bluetooth range, making them ideal for indoor and outdoor use.
Pros
Cons
Current
$69.99
Average
$68.94
Lowest
$48.99
Highest
$100.40
Lower = better sales rank
Cambridge Soundworks
Cambridge Soundworks
Cambridge Soundworks
Cambridge Soundworks
Cambridge Soundworks
Rockville
Cambridge Soundworks
EarFun
Cambridge Soundworks
Cambridge Soundworks
Cambridge Soundworks
Cambridge Soundworks
SOWO
VUOPAX
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From Expert Reviews
Praised by Experts
Criticized by Experts
From User Reviews
Users Love
Users Complain About
Best For
Outdoor enthusiasts who need a waterproof, portable speaker; homeowners wanting true stereo sound in small to medium rooms; travelers and campers; anyone who wants to use a speaker in wet environments like showers or pool decks. Use cases include backyard parties with stereo sound, mounting on a paddleboard, dual‑room music sync, and connecting to laptops or TVs via AUX for movie nights.
Not Ideal For
Users who require rapid charging, universal compatibility with older speaker generations, or a visual volume indicator. Also not ideal for those who prefer a completely app‑free experience or need dust‑proofing (IP67) for harsh environments.
Expert Opinion
Professional reviewers and editors highlight the OontZ Ultra's solid build quality, reliable Bluetooth 5.0 connection and true stereo pairing as standout features, especially given its sub‑$100 price point. They note the IPX7 rating and AUX input add versatility, but point out the limited speaker compatibility and lack of fast charging as drawbacks.
What Users Say
Everyday users overwhelmingly praise the speaker's rich, distortion‑free audio, long battery life and rugged waterproof design, often mentioning its suitability for poolside or outdoor gatherings. The most common complaints revolve around the slow 20‑hour charge cycle and occasional glitches with the pairing app.
Common Complaints
Slow 20‑hour charging time, occasional app glitches during stereo pairing, and the absence of a volume level indicator.
What People Are Saying
“Excellent sound for the size”
“Perfect for the deck or pool”
“Easy to set up and pair”
“Battery lasts forever”
“Great stereo separation”
“Charges too slowly”
“App can be glitchy”
“No volume indicator”
How It Compares
vs. JBL Flip 6
Advantages
Disadvantages
Choose JBL Flip 6 if you prioritize louder sound and quick charging; choose OontZ Ultra for longer playtime and waterproof submersion.
vs. Ultimate Ears BOOM 3
Advantages
Disadvantages
BOOM 3 is better for users who want 360° sound and quicker charging, while OontZ Ultra wins on true submersion capability and longer runtime.
vs. Sony SRS‑XB23
Advantages
Disadvantages
Sony SRS‑XB23 suits dusty or mixed‑environment use and bass lovers; OontZ Ultra is preferable for pure water submersion and extended playback.
Cambridge Soundworks OontZ Ultra 2-Pack vs Anker Soundcore 2
pairwise
